// Copyright (C) 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package note

import (
	"bytes"
	"encoding/json"
	"io"
)

type (
	jsonStyle struct {
		Compact bool
	}
)

func (s jsonStyle) Scribe(w io.Writer) Handler {
	return func(page Page) error {
		data, err := json.Marshal(page)
		if err == nil && !s.Compact {
			buf := bytes.NewBuffer(make([]byte, 0, len(data)*2))
			err = json.Indent(buf, data, "", "\t")
			data = buf.Bytes()
		}
		if err == nil {
			_, err = w.Write(data)
		}
		return err
	}
}
